What does the inside of an atom sound like? Meet our sound designer for Season 2. How Tim Nielsen is using cinematic design. He says he draws inspiration from the human heartbeat. Season 2 begins on 9 July 2022.

Klaus Fuchs: Bonus: The sound design

How the nuclear bomb shaped world history. The scientists who raced to build weapons, the spies who stole the technology and the superpowers who grappled with deployment. In Season 3, nuclear war is terrifyingly close. Can the superpowers of the Soviet Union and the USA prevent apocalypse? Nina Khrushcheva and Max Kennedy, relatives of Soviet Premier Nikita Khrushchev and US President John F Kennedy, tell the story of the Cuban Missile Crisis. Season 2 is about Klaus Fuchs, the brilliant young physicist from a pacifist German family whose spying for Russia changed history. Season 1 tells the story of Leo Szilard, and the scientist’s discovery of the lethal potential for nuclear weapons in the race to beat Nazi Germany.

“My grandfather in front of a mushroom cloud”. This is the story of why I wanted to know if the Bomb could have been stopped. Episode 1 available from 1 August. #thebomb

Leo Szilard: The prologue

A little-known scientist discovers something that will change the course of human history.After befriending some of the world’s greatest physicists in 1920s Berlin, Albert Einstein among them, Leo Szilard is forced to flee when the Nazis come to power. In London, he discovers the destructive possibilities of harnessing nuclear power; setting the course for the world’s first atomic bomb.#thebomb

Leo Szilard: 1. Moonshine

It’s a race against time to beat the Nazis to the first nuclear bomb. After his epiphany in London, Leo Szilard must convince the scientific establishment to take the nuclear threat seriously. He turns to Frederick Lindemann, a friend of Winston Churchill.
Meanwhile, in Germany, two scientists are about to make a discovery that will change the rules of science.
#thebomb

Leo Szilard: 2. Race to the bomb

A vital message must be delivered to US President Franklin D. Roosevelt. Fearing the Nazis are on the verge of creating the first nuclear bomb, Leo Szilard needs to convince the US Government to take the threat seriously. In his hour of need, he reaches out to an old friend, Albert Einstein.
#thebomb

Leo Szilard: 3. The Einstein letter

An attack on Pearl Harbour changes everything. After a surprise Japanese attack destroys US ships, the US declares war on Japan, and intensifies its efforts to create the first nuclear bomb. Caught in the middle of it all, Leo Szilard starts to lose his grip on the project.
#thebomb

Leo Szilard: 4. Pearl Harbour

The FBI pursues Leo Szilard as he loses control of the project to create a nuclear bomb. With his influence waning, the leaders of the Manhattan Project now threaten his liberty. But as the world’s first nuclear bomb comes within touching distance, Szilard fears it might soon be used on a city in Japan.
#thebomb

Leo Szilard: 5. Enemy alien

Time is running out. As Manhattan Project scientists test the world’s first nuclear bomb, Leo Szilard knows it’s the last chance to stop the US government from dropping the bomb on Japanese civilians. Working with colleagues at Chicago’s Met Lab, Szilard does all he can to alert the US president. But will his message get there in time? 
#thebomb

Leo Szilard: 6. The first atomic bomb

The world’s first nuclear bomb drops on the unsuspecting city of Hiroshima. On 7 August 1945, the world is changed forever. 
In this final episode, featuring first-hand accounts of the attack that day, Emily Strasser asks how the bomb changed humanity. Have we really come to terms with it?
#thebomb

Leo Szilard: 7. The doomsday clock

The spy who changed history. And a great-aunt's double life. The Bomb is returning with season 2. Klaus Fuchs was a brilliant scientist, but he was also a dangerous spy, stealing atomic secrets and handing them over to the Soviet Union. In this special episode, Emily Strasser takes us behind the scenes. Producer Zak Brophy tells her all about the man who stole the bomb. Season 2 begins on 9 July 2022.

Klaus Fuchs: Introducing The Bomb season 2

"She was not just a spy - she was a spymaster". The family secret of Rosa Ellis, host of season 2 of The Bomb. Emily Strasser takes us behind the scenes of this espionage thriller, as Rosa talks about her great-aunt's double life. Season 2 begins on 9 July 2022.

Klaus Fuchs: Bonus: Introducing Rosa Ellis

The man who stole the atomic bomb. And why he did it. Klaus Fuchs was a talented scientist - but he was also a Soviet spy. He worked on the British American atomic bomb project, whilst handing nuclear secrets to the Russians. Host Rosa Ellis uncovers the double lives of Klaus Fuchs and her great-aunt Ursula. #thebomb

Klaus Fuchs: 1. A grave matter

The world’s most dangerous spy? A young scientist’s journey into espionage. From a German pacifist family to a Soviet spy ring. Physicist Klaus Fuchs flees Nazi rule for England and joins the race to develop an atomic bomb – whoever gets there first wins the war. Presenter Rosa Ellis discovers how Fuchs’ double life begins. #thebombThis podcast has been edited for accuracy. Audio was updated on 20th July 2022.

Klaus Fuchs: 2. A split life

The fate of the world is decided: Klaus Fuchs joins a top-secret atomic mission. The race to build the bomb is on. In Birmingham, England, Klaus Fuchs is working on “TUBE ALLOYS” – the codename for the British atomic bomb project. But at the same time, he’s slipping secrets to the Soviets. Host Rosa Ellis finds out how he did it. #thebomb

Klaus Fuchs: 3. Unstable elements

The spy meets his spymaster - presenter Rosa Ellis' great-aunt Ursula. She's a housewife and mother living in the English countryside. And she also works for the Soviets. Fuchs and Ursula have a secret list of information that Russia urgently needs to win the nuclear race. Together, they could be the most dangerous spies on the planet. #thebomb

Klaus Fuchs: 4. A stable bond

A double life gets more dangerous. Fuchs joins America's bomb project and the race with Russia is on. But as the nuclear mission ramps up, security tightens too. Now at the heart of the mission, his skills in science and espionage are tested to the limit. #thebomb

Klaus Fuchs: 5. An irreversible reaction

Lives on the line. The Fuchs family is drawn into the espionage as the atomic bomb project takes a deadly turn. Klaus is at the covert Manhattan Project laboratory in Los Alamos, New Mexico. In this desert terrain, he has lost contact with the Soviets. As the countdown to detonation begins, there's only one person who can be trusted. #thebomb

Klaus Fuchs: 6. Camp Y

The interrogation of a spymaster. Ursula is questioned as Klaus Fuchs returns to England. Secrets threaten to be spilled and loyalties are tested. The war has ended, and the physicist could have a promising future. But will his past catch up with him? Could British intelligence services be on to him? #thebomb

Klaus Fuchs: 7. Critical mass

The spy catchers close in. Klaus Fuchs is caught in the crosshairs. Spymaster Ursula has outwitted the interrogators - but can he? As he settles down in England, British intelligence services are following him at every turn. He is caught in a web of surveillance - and his faith in the Soviets is faltering. How long can he run for? #thebomb

Klaus Fuchs: 8. The uncertainty principle

A double life implodes. Fuchs faces judge and jury, but will he confess? A future as an eminent physicist is slipping away. And the friends who took him in as a young scientist are blindsided - they want answers. But first he must face the court. #thebomb

Klaus Fuchs: 9. Dead cat, live cat

Jail awaits - Klaus Fuchs is going down. But will he take Ursula with him? British intelligence wants names. As Fuchs is forced to face his past, Ursula tries to run from hers. Presenter Rosa Ellis questions how their actions have shaped today's nuclear tensions. #thebomb

Klaus Fuchs: 10. Fallout

The world is on the brink of nuclear war. How can the Soviet Union and the USA prevent it? Hosts Nina Khrushcheva and Max Kennedy, relatives of the superpower leaders President John F Kennedy and Premier Nikita Khrushchev, tell the personal and political history of the Cuban Missile Crisis. Together Nina and Max explore what drove JFK and Khrushchev during the darkest days of October 1962. And when the crisis moves beyond their control as a U-2 spy plane is shot down over Cuba, how do they avoid global catastrophe?Released from 1st December. Follow or subscribe so you never miss an episode.

Kennedy and Khrushchev: Trailer

As the USA and Soviet Union race for supremacy in the 1960s, Premier Khrushchev sizes up his rival, President John F Kennedy. Hosts Max Kennedy and Nina Khrushcheva, relatives of the superpower leaders, explore their rise to power - one wealthy, smooth-talking and Harvard educated, the other a hardened Soviet war leader from a peasant family. As they prepare to meet for the first and only time as world leaders, the stakes couldn't be higher: they are fierce rivals in the race to build ever more devastating missiles. This is the personal and political history of the Cuban Missile Crisis.Nina Khrushcheva is the great-granddaughter of Nikita Khrushchev and Max Kennedy is the nephew of President John F Kennedy, and the son of Robert F Kennedy.

Kennedy and Khrushchev: 1. Opening moves

The Berlin Wall rises, splitting the city from east to west. Then a stand-off between American and Soviet tanks at the crossing point, Checkpoint Charlie, brings the two superpowers to the brink of military confrontation. And fearing that they are falling far behind in the missile race, the Soviets prepare to test the biggest bomb ever exploded. As relations between the two sides deteriorate, we explore the importance of diplomatic back channels with hosts Nina Khrushcheva and Max Kennedy, relatives of the superpower leaders. We meet Max's father, Senator Robert F Kennedy, and his Soviet contact, Georgy Bolshakov. This is the personal and political history of the Cuban Missile Crisis. Nina Khrushcheva is the great-granddaughter of Nikita Khrushchev and Max Kennedy is the nephew of President John F Kennedy, and the son of Robert F Kennedy.

Kennedy and Khrushchev: 2. King of bombs

The Soviets secretly plan to move an arsenal of nuclear weapons to Cuba. It is an audacious move by Nikita Khrushchev, to protect Fidel Castro’s communist regime from an American invasion. Since Castro and the Soviet leader met in a New York hotel in 1960, they’ve had a personal bond. Hosts Nina Khrushcheva and Max Kennedy, relatives of the superpower leaders, tell the story of how America plotted to overthrow Castro and how Khrushchev persuaded the Cuban leader to go along with his bold plan. This is the personal and political history of the Cuban Missile Crisis.

Kennedy and Khrushchev: 3. Gamble

A covert convoy of ships carries Soviet missiles across the Atlantic, while American U-2 planes spy over Cuba and the sea routes. And as the ships arrive, Khrushchev writes to Kennedy about the divided city of Berlin. It’s a distraction tactic. But the American spy planes photograph an alarming development. Hosts Nina Khrushcheva and Max Kennedy, relatives of the superpower leaders, tell the personal and political history of the Cuban Missile Crisis.

Kennedy and Khrushchev: 4. Almost caught

Spy plane pictures reveal the Soviet missile build up to the Americans. Now they know what Khrushchev has really been up to.  How will a furious President Kennedy respond? Hosts Nina Khrushcheva and Max Kennedy, relatives of the superpower leaders, tell the personal and political history of the Cuban Missile Crisis.

Kennedy and Khrushchev: 5. The crisis: Day one

Pressure is building on President Kennedy to order a military strike on the newly discovered nuclear missile site on Cuba. But JFK wonders whether it’s better to keep the discovery a secret from Premier Khrushchev – for now. Meanwhile, the Washington press grows suspicious of all the late-night activity at the White House. This is the personal and political story of the Cuban Missile Crisis, told by NIna Khrushcheva and Max Kennedy.

Kennedy and Khrushchev: 6. Kennedy’s move

President Kennedy sends shockwaves around the world with a televised speech to the nation. He imposes a blockade on all ships bound for Cuba - Premier Khrushchev brands it “an act of piracy”. But he knows that hidden in a tiny Cuban port, there’s a Soviet ship laden with unimaginable destructive power. Hosts Nina Khrushcheva and Max Kennedy, relatives of the superpower leaders, tell the personal and political history of the Cuban Missile Crisis.

Kennedy and Khrushchev: 7. Eyeball to eyeball

Troops in Cuba fear an attack is imminent, as alarm grows around the world. Fidel Castro urges Khrushchev to strike first. The Soviet premier warns President Kennedy, in a long and emotional letter, that “the knot of war” has been tied - soon "even he who tied it will not have the strength to untie it”. This is the personal and political story of the Cuban Missile Crisis, told by Nina Khrushcheva and Max Kennedy.

Kennedy and Khrushchev: 8. The logic of war

Soviet anti-aircraft fire takes down an American spy plane over Cuba, as the crisis spirals. The pilot is killed. With nuclear missiles almost ready for launch in Cuba, how can the two superpower leaders pull back from the brink of war? This is the personal and political history of the Cuban Missile Crisis, told by Nina Khrushcheva and Max Kennedy.

Kennedy and Khrushchev: 9. Black Saturday

Can Khrushchev and Kennedy stop a spiral into nuclear devastation? Khrushchev realises he has lost control of the crisis, as an American plane is shot down over Cuba. With the Americans preparing for war, can the two leaders communicate quickly enough to avoid it? Nina Khrushcheva and Max Kennedy, relatives of the superpower leaders, reflect on what might have been, in this extraordinary chapter in 20th Century history.

Kennedy and Khrushchev: 10. Fallout

Humans are returning to the Moon - hear all about it on the BBC’s space podcast. 13 Minutes Presents: Artemis II is following Nasa’s mission to loop around the Moon, with a new episode every day. Starts on Monday 30 March 2026. Search for 13 Minutes Presents: Artemis II wherever you get your BBC podcasts. Follow or subscribe now so you don’t miss an episode.
Nasa plans to return to the Moon for the first time in more than half a century. Its Artemis II mission aims to send four astronauts to loop around the Moon. They are planning to go further from Earth than any human in history.
The story of Artemis II will be told by space scientist, Maggie Aderin and British astronaut, Tim Peake, with regular guest, US space journalist Kristin Fisher.
13 Minutes is the BBC’s space podcast, telling epic space stories, including the first Moon landing, Apollo 13 and the space shuttle. Theme music by Hans Zimmer and Christian Lundberg and produced by Russell Emanuel, for Bleeding Fingers Music.